Asymmetric refraction in an older population: the Blue Mountains Eye Study
| Autor: | Paul Mitchell, Elena Rochtchina, Magdalena Guzowski, Jie Jin Wang, Samantha Fraser-Bell |
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| Rok vydání: | 2003 |
| Předmět: |
Male
Refractive error medicine.medical_specialty Aging genetic structures Eye disease Population Spherical equivalent Refraction Ocular Cataract Older population Anisometropia Ophthalmology medicine Prevalence Humans education Dioptre Aged Aged 80 and over education.field_of_study business.industry Middle Aged medicine.disease Refraction eye diseases Optometry Female sense organs New South Wales business |
| Zdroj: | American journal of ophthalmology. 136(3) |
| ISSN: | 0002-9394 |
| Popis: | To describe prevalence and associations of asymmetric refraction in an older population.All participants in the Blue Mountains Eye Study had comprehensive eye examinations, including refraction. Spherical equivalent (SEq = sum sphere +.5 cylinder), in diopters, defined refractive error. Refractive asymmetry was assessed in phakic participants; anisometropia was defined asor =1.0 diopters SEq difference between eyes.Anisometropia was present in 14.7% of participants. Mean refractive asymmetry (in diopters) in persons aged60 years was 0.43; 60 to 69 years, 0.51; 70 to 79 years, 0.72; and 80+ years, 0.88. Prevalence and severity of anisometropia increased with age (P.001), increasing ametropia or astigmatism. Associations included older age, cataract, and increasing ametropia. Myopic participants-3.0 diopters had the highest anisometropia prevalence.Refractive asymmetry was associated with age, increasing ametropia, and cataract. |
| Databáze: | OpenAIRE |
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